Preservative LEUCIDAL 10 g

Natural fermented preservative for cosmetics Leucidal Liquid

The preservative Leucidal Liquid from the manufacturer Active Micro Technologies (AMT) is based on an antimicrobial peptide originally obtained from the lactic acid bacteria Leuconostoc kimchii. L. kimchii is one of 15 species of microorganisms that make up the mixed culture responsible for the production of the Korean staple food known as kimchi, a type of fermented cabbage.

Component characteristics and features of use

INCI: Leuconostoc/Radish Root Ferment Filtrate

CAS Number: 84775-94-0

Appearance: transparent or slightly cloudy liquid

Dosage: 2 - 4%

Solubility: completely and freely soluble in water at temperatures up to 70°C

Use: Leucidal Liquid is effective in a wide range of typical cosmetic and personal care product manufacturing conditions. It is heat stable up to 70°C and active in both acidic (pH 3) and alkaline conditions (pH 8).

Storage: in a dark, dry place at temperatures from 0 to 35°C.

Scientific rationale for the use of a preservative

Leucidal Liquid is based on an antimicrobial peptide originally obtained from the lactic acid bacteria Leuconostoc kimchii. L. kimchii is one of 15 species of microorganisms that make up the mixed culture responsible for producing the Korean dietary staple known as kimchi, a type of fermented cabbage.

Like many lactic acid bacteria, L. kimchii is able to limit the growth of other microorganisms by acidifying the environment, but as is often the case in nature, it does not limit itself to one defense mechanism. In addition to acidifying the environment, L. kimchii also produces a novel antimicrobial peptide. Using modern fermentation and bioprocessing technologies, AMT commercialized this antimicrobial peptide to produce the preservative Leucidal Liquid. The first step in developing this product was to determine the peptide’s potential to inhibit the growth of various bacteria and fungi. Using standard serial dilution protocols in nutrient broth, the minimum inhibitory concentrations (MICs) of Leucidal Liquid were determined for various bacterial and fungal organisms. The positive MIC test results required further testing to confirm its ability to provide product preservation. A duplicate control test was conducted using 2% and 4% Leucidal Liquid in a standard cream base formulation. Samples were inoculated with E. coli, P. aeruginosa, S. aureus, K. pneumoniae, C. albicans, A. niger and B. cepacia. Samples were collected periodically during the first 28 days of incubation and tested for the presence of these organisms. After the first 28 days of incubation, cream samples were re-inoculated with microbial cultures and sampled for an additional 28 days.

Benefits of Using Leucidal Liquid in Cosmetic Formulas

Since peptides have been found to provide moisturizing properties to the skin, the preservative Leucidal Liquid was used in a comparative study to evaluate its ability to provide moisturizing effects in addition to its demonstrated antimicrobial function. The skin moisturizing study was conducted using a generic cream base versus the same cream base containing 1% Leucidal Liquid. As shown in this study, adding 1% of the preservative to the base cream formulation provided a 10% increase in moisturizing. Based on these results, the addition of this innovative product provides the formulator with the opportunity to benefit from both the natural antimicrobial properties of Leucidal Liquid and its ability to provide powerful moisturizing properties to a cosmetic formulation. These properties make it ideal for the treatment of numerous skin and scalp conditions.
 

Why you should buy Leucidal Liquid

• easily soluble in water and heat-stable at temperatures up to 70 °C, which allows the preservative to be used in various recipes
• 100% natural component
• practically odorless
• wide spectrum of antibacterial activity
• compatible with a wide range of cosmetic ingredients.
• very mild action, does not have an irritating effect
• can additionally moisturize the skin
• used in emulsions, cleansers and decorative cosmetics.

Handmade cosmetics recipes, formulas and reviews

It is very difficult to create your own correct recipes if you are new to cream maker. And we are ready to help you with this. Go to the YouTube channel Beurre Cosmetic Kitchen, where we have already developed many recipes for handmade cosmetics and share the technology for making cosmetics with our own hands. And also you can check Blog from Beurre, where we share useful information about creating the right natural cosmetics.